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MERCY CLINIC GASTROENTEROLOGY LLC

PAC 8628121795 Physician group
GASTROENTEROLOGY · SAINT LOUIS, MO · hospital-affiliated
Specialty GASTROENTEROLOGY — most common member specialty (multi-specialty groups carry one label; see Methods)
Footprint Registered in SAINT LOUIS, MO · bills Medicare in 7 states
Scale 64 providers on the CMS registry roster · 94 codes billed (five-year data window) · 12,489 services (all billed codes, CY2024)
Medicare paid $1.2M · across all billed codes, CY2024, attributed & disclosed
Affiliation Hospital-affiliated — at least one member holds a hospital affiliation in the CMS registry
Contact (314) 251-2880 — CMS registry listing
CMS Doctors & Clinicians registry · Medicare Part B physician/supplier claims · figures are attributed (single-group clinicians) and disclosed fee-for-service — a subset, never complete totals · group series shown over the most recent 5 years (rosters archived from 2019)
Group analytics

Who's billing in this group, plus the paid volume analytics · CY2024

Clinician makeup · CY2024
Physicians 41Advanced-practice 19Other clinicians 0= 60 clinicians billed · CY2024
By clinician headcount, CY2024. 'Physician' follows Medicare's §1861(r) definition (MD/DO, podiatry, optometry, dental medicine, chiropractic); facility and supplier enrollments are not counted as clinicians. These 60 are the clinicians who billed in CY2024 — a subset of the all-time registry roster shown on the group's identity card.

Billed 44 of the group's 94 codes this year, across 3 states (CY2024).

The full analytics for this group

Premium

The billed-volume rank, trajectory, and economics behind this group — computed on the same disclosed Medicare Part B data.

What Medicare paid this group in CY2024 is on the group's identity card — free, on every tier. Premium breaks that figure down per code and per service, and puts the volume behind it in national and peer context.

  • Per-code payment breakdown & avg $/service — dollars behind the volume
  • Beneficiary-episode volume — reach, not just service counts
  • Office vs. facility setting mix — place-of-service code split
  • National billed-volume rank — percentile, cohort & year disclosed
  • Size-peer billed-volume benchmark — vs. groups of similar size
  • Top-3 clinician share — how volume distributes
  • 5-year volume trend — direction across the window
  • Business mix — largest codes by payment

Rank and benchmark figures are billed-volume positions among peers, not measures of care. All figures attributed (single-group clinicians) and disclosed Medicare Part B fee-for-service.

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Medicare Part B FFS · CY2024 · as published by CMS

Provider volumes, all codes · CY2024

NPIProviderCredentialsTypeCitySt Services (all codes) locked column
1689844888 Doumit, Jhony MD Gastroenterology Saint LouisMO premium
1245381201 Verzola, Edwardo M.D. Gastroenterology FestusMO premium
1982648259 Alkaade, Samer M D Gastroenterology Saint LouisMO premium
1609916824 Tiriveedhi, Kiranmaye M.D. Gastroenterology Saint LouisMO premium
1073505178 Zerega, Michael MD Gastroenterology Lake St LouisMO premium
1639370919 Assioun, Youssef MD Gastroenterology Saint LouisMO premium
1720475403 Kundumadam, Shanker Das MD Gastroenterology FestusMO premium
1467833301 Walker, Ted M.D. Gastroenterology Saint LouisMO premium
1831458652 Goldkamp, William MD Gastroenterology Saint LouisMO premium
1033365358 Abdalla, Yazan M.D. Gastroenterology Saint LouisMO premium
1609872704 King, Paul M.D. Gastroenterology Saint LouisMO premium
1912025925 Vanhoornbeek, David PA-C Physician Assistant Saint LouisMO premium
1306378039 Reznicek, Emily DO Gastroenterology Saint LouisMO premium
1548600083 Ulmer, Laura D.O Gastroenterology Saint LouisMO premium
1750676664 Gor, Parul M.D. Gastroenterology Saint LouisMO premium
1124098546 Cleary, Michael M.D. Gastroenterology ChesterfieldMO premium
1861485724 Koenig, Gary M.D. Gastroenterology HazelwoodMO premium
1538328885 Sharma, Sheetal M.D. Gastroenterology WashingtonMO premium
1487818001 Schroeder, Katie MD Gastroenterology Saint LouisMO premium
1154640225 Frederickson, Nicholas M.D. Gastroenterology WashingtonMO premium
1033573845 Howe, Catherine MD Gastroenterology Saint LouisMO premium
1952639288 Hogan, Sarah PA-C Physician Assistant Saint LouisMO premium
1457554834 Desai, Roshani MD Gastroenterology Saint LouisMO premium
1881108413 Hartmann, Sarah AGNP Nurse Practitioner Saint LouisMO premium
1538539614 Grana, Kimberly NP Nurse Practitioner BellevilleIL premium
1457707515 Clanahan, Michael MD Gastroenterology Saint LouisMO premium
1295181428 Burton, Samuel M.D. Internal Medicine Saint LouisMO premium
1548551831 Dixon, Alicia MMS PA-C Physician Assistant Saint LouisMO premium
1720736119 Vogel, Stephanie NP-C Nurse Practitioner Saint LouisMO premium
1821742180 Poropat, Heather Nurse Practitioner Saint LouisMO premium
1831788066 Camp, Bethany Physician Assistant Saint LouisMO premium
1558490383 Guerrero, Nicole ANP-BC Nurse Practitioner FestusMO premium
1467935148 Kopp, Shannon PA-C Physician Assistant LawrenceKS premium
1881289262 Davis, Kathleen PA Physician Assistant Saint LouisMO premium
1679967673 Bayens, Cheryl FNP Nurse Practitioner Saint LouisMO premium
1447292123 Blatt, Carl M.D. Gastroenterology WashingtonMO premium
1700316718 Hoffman, Gila MD Gastroenterology Saint LouisMO premium
1629830872 Deweese, Breana MS, PA-C Physician Assistant Saint LouisMO premium
1154935880 Bivins, Carol AG-NP Nurse Practitioner Saint LouisMO premium
1962051086 Hallquist, Monica NP Nurse Practitioner FestusMO premium
1295837441 Tiwari, Priyanka MD Gastroenterology Saint LouisMO premium
1992718522 Brinkman, Heather PHY ASSIST CERT Physician Assistant Saint LouisMO premium
1336582972 Zinad, Saad M.D Gastroenterology FestusMO premium
1760457352 Keithley, Kathleen PA-C Physician Assistant BellevilleIL premium
1174293559 Bohnert, Robert DNP, APRN, FNP-C Nurse Practitioner Saint LouisMO premium
1710552757 Strothcamp, Andrea FNP Nurse Practitioner WashingtonMO premium
1770937492 Ahmed, Zarir · member of 2 groups Hospitalist Saint LouisMO premium
1083917090 Alsabbagh, Mohammed Eyad · member of 2 groups M.D. Gastroenterology Saint LouisMO premium
1336110543 Bernstein, Marc · member of 2 groups M.D. Gastroenterology Saint LouisMO premium
1144556499 Bhatti, Faiza · member of 2 groups M.D., Gastroenterology Saint LouisMO premium
1114993664 Buse, Paul · member of 2 groups M.D. Gastroenterology ChesterfieldMO premium
1548615339 Dahip, Michael · member of 4 groups M.D. Gastroenterology ChandlerAZ premium
1760893184 Dailey, Erica · member of 3 groups DO Internal Medicine Overland ParkKS premium
1063615284 Palagiri, Jennifer · member of 2 groups M.D. Gastroenterology TroyMO premium
1164639274 Peterson, John R · member of 2 groups M.D. Gastroenterology WashingtonMO premium
1407924954 Rafiq, Rehan · member of 3 groups M.D. Gastroenterology FestusMO premium
1043443377 Ramirez Dominguez, Tatiana · member of 2 groups MD General Surgery Saint LouisMO premium
1013930585 Reddy, Muddasani · member of 2 groups DO Internal Medicine Saint LouisMO premium
1912066382 Shah, Rajesh · member of 2 groups M.D. Gastroenterology Saint LouisMO premium
1811124886 Ulrich, David · member of 3 groups M.D. Internal Medicine Saint LouisMO premium

Volumes are attributed to a group only for clinicians affiliated with exactly one group. Clinicians in several groups are listed ("member of N groups") but shown as "—" — their volume is not attributed to any single group. A "—" on a single-group clinician means CMS suppressed the figure (fewer than 11 beneficiaries), never zero. Beneficiary-episodes count CMS's per-setting beneficiary figures, not unique patients. Average Medicare payment is the amount Medicare actually paid per service, weighted by service volume across office and facility settings. Where the roster is a single clinician, that clinician's service counts match the group's attributed volume shown on the ranked results, so they are shown here; the per-provider split across a larger roster is a premium feature. See Methods & Sources.